Hello,we have Dainichi CNC lathe with Fanuc 0TF/0TB control,lost parameters due to dead battery.We still have the original parameters list,so we did "DEL"+"RESET"+"Control On" and reloaded #900 parameters first.After control off and on,we got screen like:
PMC Load Select:
1. Load from I/O.
3. Run.
4. Run without PMC.
If you choose #1,control will keep input forever,(also we don't have PMC tape or disk to load).
If choose #3,CRT shows "PMC not loaded".
If choose #4,then loaded basic parameters but can not load Diagnos 300 and 400 parameters,machine won't get out of E-Stop due to missing PMC.
This machine PMC chips built in memory board on master PCB,no PMC board, Parameter 905.0=1 (PMC-L). Memory board p/n: A16B-1212-021X.All voltage check pins (+-15V,24V,5V) on board checked OK.
We also tried to load P900 and DGN 300/400 together,but DGN 300/400 won't take the input value.From parameters list,the D300 should be decimal format,exp.D300=450000,but CRT always shows binery format,exp.D300=00000000,even the P19.7=1.
Since the machine had been working good before battery dead,
1. what caused the problems?
2. How to load PMC?
3. How to input D300/400 (Timers/Keep relays)?
Any help will be appreciated!!
Thank you for your time.
After clearing the memory you should input the 900 NC parameters. If you are getting the screen:
1. Load from I/O.
3. Run.
4. Run without PMC
then either you did input something wrong or you have a hardware problem in your memory pcb or the PMC-M pcb if you have one.
Check your 900 parameters . Clear memory again and input these parameters.
Regards
Alex
Thank you,Alexfanuc.If I changed NC P905.0=0(PMC-M),I won't get PMC Load select screen.But the original parameters list shows P905.0=1,also this machine came with PMC chips inserted to Memory board(PMC-L).Do you know what labels are for PMC chips?There are several sets of chips on memory board.
I found one same memory PCB A16B-1212-0210,I'll try it tomorrow,I doubt it will work.I'd like to have the PMC chips replaced,but no way to find.I called OEM service,they contacted MFG in Japan,couldn't find,machine built in 1990.